Re: [Help-bash] Brace expansion with empty args

[Greg Wooledge]

On Fri, Jun 14, 2013 at 03:51:37PM +0300, Pierre Gaston wrote:
> From the previous discussions about {} on bug-bash, brace expansion is
> a textual thing.
> So I guess it's just that ''{,} result in the text '' '', while {,}
> results in not text, or perhaps in a whitespace

It produces a single null string:

imadev:~$ printf '<%s> ' {,} ; echo
<>